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MYTILACEA. 71 
- mutica, Lumarck, Voy. de l Astrolabe, pl. 50. f. 1--3. 
- serrifera, Lamarck, Chemnitz, Conch. v. 7. pl. 119. f. 1197. 
Chama gigas (var. d.), Dillwyn. 
. squamosa, Lamarck, Enc. méth. pl. 236. f. 1. 
Chama gigas (var. a.), Dillwyn. 
Genus II. HIPPOPUS, Lamarck. 
. maculatus, Lamarck, Enc. méth. pl. 236. f. 2, a, b. 
Chama hippopus, Linneus; Tridaena hippopus, Blainville ; 
Tridacna maculata, Quoy. 
Famixy II. MYTILACEA. 
Genus I. LITHODOMUS, Cuvier. 
. canaliferus, Hanley, Pro. Zool. Soc. 1844. 
. caudigerus, Sowerby, Genera of Shells, no. 23. 
Modiola caudigera, Lamarck ; Mytilus aristatus, Dillwyn. 
. dactylus, Cuvier ; Reeve, Conch. Syst. pl. 22i.f.6 and 7. 
Modiola lithophaga, Lamarck ; Mytilus lithophagus, Linn. 
. levigatus, Quoy, Voy. del’ Astr. v. 3. p. 464. pl. 78. f. 17, 18. 
. plumulus, Hanley, Pro. Zool. Soe. 1844. 
. truncatus, Gray, App. to Dieffenbach’s New Zealand. 
Genus IJ. MODIOLA, Lamarck. 
. Adriatica, Lamarck, An.s. v.v.7.p-20; Poli, Sicil. pl. 32. f. 8. 
. albicosta, Lamarck, Anim. sans vert. v. 7. p. 19. 
. Americana, Leach, Zool. Mise. v. 2. pl.72. f. 1. 
. arborescens (Mytilus), Chemnitz, Conch. f. 2016. 
Modiola picta, Lamarck. 
. arcuata, Dufo, Ann. Sci. Nat. Oct. 1840. p. 215. 
arcuatula, Hanley, Pro. Zool. Soc. 1844. 
attenuata, Deshayes, Anim. s.v. v. 7. p. 28; Sow. Gen. f. 4. 
Lithodomus caudigerus (var.), Sowerby. 
. australis, Gray, King’s Australia. 
. barbata, Lamarck, Ene. méth. pl. 318. f. 6. 
Mytilus barbatus, Linneus. 
